baber/WOPTO huggingface dataset:
Patent EP-0372421-A2 (EP)
Inventor: LOBENTANZER HANS DR
IPC: H01S5/34
Filed: 1989-12-01
Abstract: A light-emitting compound semiconductor component with multiple quantum well structure, like a laser diode or a light-emitting diode, has an active region with an alternating sequence of layers of well layer material and of depletion layer material. The thickness of the depletion layer and of the adjacent well layers is selected in such a manner that a relatively high probability of residence in the depletion layer region exists for one type of charge carrier whereas the other type of charge carrier is located in the potential wells. In this manner it is possible to reduce the probability of the occurrence of radiationless Auger recombination processes and thus to reduce the rush current and to increase the quantum yield of the component. This is of importance particularly because material systems having a small band gap, which laser at long wavelength suitable for transmission in optical fibres, normally suffer damaging functional influences due to radiationless Auger recombinations, and these disadvantages can be considerably reduced by dimensioning the layer thickness with respect to the probability distributions described. 
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Patent EP-0332245-A2 (EP)
Inventor: JACONO CARMELO
IPC: E01C7/26
Filed: 1989-02-24
Abstract: A homogeneous composition for road surfacing contains a bitumen for road use and a quantity of a mixture of thermoplastic organic polymers of up to 20 parts by weight per 100 parts by weight of the bitumen, said mixture containing not less than 40% and up to 70% by weight of one or more polyolefins, the remaining percentage consisting essentially of polyvinylchloride, polyethylene terephthalate and polystyrene. 
     This mixture of thermoplastic polymers can be obtained by recovering and recycling the plastics material contained in solid urban refuse or in industrial waste.
Patent EP-0337582-A2 (EP)
Inventor: RODAL DAVID R
IPC: G11B5/588
Filed: 1982-10-27
Abstract: Apparatus for changing the velocity of transport of a tape to a selected velocity in accordance with a system reference timing signal identifying periodically occurring intervals comprises means for controlling the velocity of transport of the tape responsive to a velocity change command signal to cause the tape transport velocity to be changed at a rate for a velocity change interval that results in a displacement of the tape at the end of said velocity change interval proportional to the product of the velocity change and the velocity change interval as adjusted for any residual displacement of the reproduce head at the end of the velocity change interval. In order to maintain synchronous control track lock the apparatus includes means for comparing the field identification information included in video information reproduced from the tape with corresponding reference field identification information identifying distinct reference field intervals of a recurring sequence of a plurality of distinct reference field intervals and generating a match signal when the compared field identification information identify a coincidence of a distinct field interval of video information reproduced from the tape and a corresponding distinct reference field interval occurring in the sequence of distinct reference field intervals; means for driving the capstan to a velocity corresponding to the normal velocity of transport of the tape in response to the generation of said match signal; means for comparing the phase of the capstan with the phase of a stable reference signal and generation an error signal indicative of the difference between the compared phases; and means responsive to the   error signal for adjusting the drive of the capstan to eliminate the phase difference.
Patent EP-0327225-A2 (EP)
Inventor: GUPTA BHARAT BHUSHAN
IPC: A23D9/00
Filed: 1989-01-20
Abstract: A low fat spread which is a water-in-oil emulsion comprising a continuous fat phase and a dispersed aqueous phase, the aqueous phase comprising at least 6% by weight of one or more proteins derived from milk and from 1.3 to 4.0% by weight of a modified starch, the fat phase comprising 18 to 37% by weight of the total composition of the low fat spread. 
     The low fat spread of the invention has improved texture, mouthfeel and spreadability, as well as improved flavour.
Patent EP-0332304-A2 (EP)
Inventor: ROBERT GREGORY
IPC: G06F21/00
Filed: 1989-02-16
Abstract: A license management system which includes a license management facility that determines whether usage of a licensed program is within the scope of the license. The license management system maintains a license unit value for each licensed program and a pointer to a table identifying an allocation unit value associated with each use of the licensed program. In response to a request to use a licensed program, the license management system responds with an indication as to whether the license unit value exceeds the allocation unit value associated with the use. Upon receiving the response, the operation of the licensed program depends upon policies established by the licensor.
Patent EP-0333500-A2 (EP)
Inventor: ALLEN ADRIAN SWINBURN
IPC: D06M15/263
Filed: 1989-03-17
Abstract: Nylon or wool carpets and other polyamide products can be rendered stain resistant by impregnation with an acid-soluble addition polymer comprising sulphonic groups and aromatic, cycloaliphatic or heterocyclic groups, for instance dicyclopentadiene sulphonate, generally in combination with a hydrophilic monomer such as (meth) acrylic acid or maleic acid.
Patent EP-0344929-A2 (EP)
Inventor: COLVIN ALEX D
IPC: G01N27/22
Filed: 1989-05-08
Abstract: A circuit and method for measuring the capacitance of a medium independent of the resistivity of the medium. A triangular voltage Vt is applied to plates (22) immersed in the medium to generate both a resistive current component (i(R) in phase with the triangular voltage and a capacitive current component i(C) in phase with a differential of the triangular voltage. The resistive and capacitive current components are summed (32) with a selectable current i(ST) which is provided having a phase π radians out of phase with the triangular voltage and having an amplitude related to a control signal. The summed current is sampled (42) over a time period phase shifted from the capacitive current component and then integrated (46) so that the capacitive current component integrates to zero and the integral of the resistive current component minus the selectable current provides the control signal. In response to the control signal, the selectable current is varied until the sum of the selectable current and resistive current component are nulled. This summed current is then sampled (44) in phase with the capacitive current component thereby obtaining a measurement of capacitance independent of resistance.
Patent EP-0350157-A2 (EP)
Inventor: HASEGAWA YOSHIKI
IPC: C09D175/04
Filed: 1989-05-30
Abstract: An aqueous coating composition comprising, as essential components, an aqueous polyurethane resin (A) obtained by reacting a diisocyanate and glycols contain­ing a carboxylic acid group-containing glycol to prepare an urethane prepolymer, neutralizing the urethane pre­polymer and subjecting the neutralized urethane pre­polymer to chain extension with a hydrazine derivative, and an aqueous dispersion (B) of an acrylic copolymer whose constituent monomers contain carbonyl group-­containing monomer or an amido group-containing monomer in an amount of at least 0.5 part by weight per 100 parts by weight of total polymerizable monomers, wherein the weight ratio in terms of solid content, of the aqueous polyurethane resin (A) and the aqueous dispersion (B) of an acrylic copolymer is 100/5 to 5/100, and an aqueous coating composition obtained by, in the presence of the above aqueous polyurethane resin (A), polymerizing radical-polymerizable acrylic monomers (C) containing a carbonyl group-containing monomer or an amido group-­containing monomer in an amount of at least 0.5 part by weight per 100 parts by weight of total polymerizable monomers, in such proportions that the weight ratio in terms of solid content, of the aqueous polyurethane resin (A) and the radical-polymerizable acrylic monomers (C) is 100/5 to 5/100.
Patent EP-0353013-A2 (EP)
Inventor: EDWARDS KEITH ANDREW
IPC: C11D17/04
Filed: 1989-07-25
Abstract: A wiping article consists of two porous substrate layers sandwiching surfactant. The surfactant is chosen so that its properties retard its release when the article is wet and squeezed, hence avoiding initial excess foaming and lengthening the number of times that a foaming solution of surfactant can be squeezed from the article. The surfactant is chosen to have a Krafft temperature above 20°C and/or form a liquid crystalline phase at temperatures above its Krafft temperature up to 30°C preferably up to 50°C.
Patent EP-0364102-A2 (EP)
Inventor: ROHRLACH MILO LESLIE
IPC: B32B5/22
Filed: 1989-09-12
Abstract: A roof headliner having a substrate (10) of corrugated fibreboard, a facing laminate itself having a face layer (12) of fabric and a layer of open cell soft resilient foam (13), and an intermediate layer of relatively stiff semi-rigid foam (15) sandwiched between the substrate (10) and the soft resilient foam (13), and adhering the substrate (10) to the facing laminate.
Patent EP-0375163-A2 (EP)
Inventor: BROWN KENNETH
IPC: H01B1/22
Filed: 1989-11-22
Abstract: An abrasion resistant low temperature air fired thick film ink composition is disclosed. The composition includes a glass matrix material having a softening point below about 700°C, a particulate conductive material and a particulate reinforcing material comprising a spinel.
Patent EP-0336821-A2 (EP)
Inventor: DULONG CAROLE
IPC: G06F12/1045
Filed: 1989-03-30
Abstract: Associated for use with central processors (e.g. several function units) and a main memory, a cache memory system holds information units available to the processor more quickly than from the main memory. The cache is accessed directly with virtual addresses and includes an additional field for a key designation for distinctly identifying the pertinent program involving associated units of information. The difficulty of virtual addresses is that two virtual addresses in two different contexts may be the same but do not correspond to the same physical location. Thus, the additional field in the cache indicates whether the virtual address found is the one looked for. Structure is provided for purging the cache in a timely fashion to accommodate newly assigned keys.
Patent EP-0376915-A2 (EP)
Inventor: PFEIFER ULF DIPL-ING-DR
IPC: B03C3/017
Filed: 1989-12-21
Abstract: An electrostatic soot converter for combustion gases has a housing (1) fitted with a gas inlet and a gas outlet, at least one central electrode (9) in the symmetry axis of the gas stream between gas inlet and gas outlet and a precipitation electrode system (11) between the at least one central electrode (9) and the housing (1) which is designed as an electrical heating system. A high voltage can be applied between each central electrode (9) on the one hand, and the precipitation electrode system (11) on the other. At the same time, the precipitation electrode system (11) is formed by a plurality of individual heating conductors (12) and between the at least one central electrode (9) and the heating conductors (12) there is a perforated gas feed which provides an outer space with stabilised flow containing the heating conductors between the gas feed and the housing (1). <IMAGE>
Patent EP-0379948-A2 (EP)
Inventor: METZGER WILLI
IPC: C25D3/56
Filed: 1990-01-17
Abstract: A description is given of aqueous acid solutions for the electrodeposition of tin and/or lead/tin alloys to improve electroplating in the high current density range and obtain uniform lustre throwing power in metals deposited in the low current density range. The solutions according to the invention contain a mixture of metal salts, free alkanesulphonic acid, nonionic wetting agents and, optionally, aromatic short-chain aldehydes and/or, optionally, aromatic ketones and/or, optionally, short-chain unsaturated carboxylic acids. The solutions according to the invention are therefore characterised in that tin and/or lead salts of the alkanesulphonic acid are used as metal salts, the alkyl group of the alkanesulphonic acid consisting of 1 to 5 carbon atoms, and the free alkanesulphonic acid containing alkyl groups with 1 to 5 carbon atoms. As a further brightener, the solutions contain a mixture of a reaction product of acetaldehyde and/or its aldol condensation products with ammonia and/or acyclic ketones and/or aliphatic amines, amides, amino acids and/or hydrazine compounds.
Patent EP-0392184-A2 (EP)
Inventor: HEIDELBERGER PHILIP
IPC: G06F12/0846
Filed: 1990-03-02
Abstract: A parallel processor computer system having a large shared memory (Mps) is provided with shared memory caches (Cm) associated with the various modules of the memory system selectively connectable to each other and to the processors (P) over one or more crossbar or multi-stage interconnection networks. The memory caches (Cm) coexist with processor caches (Cp), located adjacent to each processor (P). The processor caches primarily store private data, but may also store shared-read-only data. The control logic for the shared memory parallel processor system utilizes the shared memory caches to cache shared data and improve the memory performance by reducing the memory access time for shared memory (511, 610). It also reduces the latency of a shared memory reference that has to be routed via the multiple processor multi-stage interconnection network and increases its own throughput by effectively reducing the memory access time and avoids the need for cache coherence among the shared memory caches. Access to the shared memory caches is not restricted to one processor, or cluster of processors, but is distributed across the memory modules of the system and is accessible by all processors. Further, the shared memory caching scheme scales up with the number of processors in the system with minimum changes to addressing and other control mechanisms.
Patent EP-0399207-A2 (EP)
Inventor: DREIBELBIS JEFFREY H
IPC: G01R31/28
Filed: 1990-04-18
Abstract: A test selection system is provided which includes a semiconductor substrate (S) having a pin (AX) connected thereto and an integrated circuit (M) disposed on the substrate (S) and connected to the pin (AX) having an operating voltage within a given voltage range. A latch conditioning circuit (12) having an input responsive to a voltage of a given magnitude has an output (NB) connected to a latch (14), and a voltage control circuit (10) operable at a voltage without the given voltage range selectively applies a control voltage of the given magnitude to the input of the latch conditioning circuit (12). A voltage without the given voltage range is applied to the pin (AX) during a first interval of time to produce the control voltage for establishing a test mode and a voltage within the given voltage range is applied to the pin (AX) during a second interval of time to establish a normal operating mode for the integrated circuit (M).
Patent EP-0412291-A2 (EP)
Inventor: HASEGAWA MAKOTO
IPC: H04L27/152
Filed: 1990-07-04
Abstract: A data receiver includes a pair of first and second mixers (2,3) mixing an input RF signal (1) and a local oscillator signal and generating a pair of first and second quadrature intermediate-frequency output signals (8,9). A phase shifter (10) shifts a phase of the first intermediate-frequency (8) output signal by 90 degrees. A third mixer (12) mixes an output signal from the phase shifter and the first intermediate-frequency output signal (8). A fourth mixer (13) mixing the first and second intermediate-frequency output signals (8,9). A demodulator (16) performing data demodulation by use of output signals (14,15) from the third and fourth mixers (12,13).
Patent EP-0398396-A2 (EP)
Inventor: SOMETANI TARO
IPC: G01R19/155
Filed: 1986-10-31
Abstract: This invention relates to a voltage sensor for sensing a voltage on an electrically charged object such as a distribution line or the like, the sensor being disposed with an insulation space to the object. The voltage sensor includes an amplifier circuit for outputting a signal having a waveform similar to that of a displacement a signal having a waveform similar to that of a displacement current inflowing from the electrically charged object via the insulation space, and a filter circuit for extracting a signal having predetermined frequencies from the output of the amplifier circuit and outputting an alternating current waveform similar to the potential of the electrically charged object.
Patent EP-0413335-A2 (EP)
Inventor: TAKABAYASHI HIROSHI
IPC: H01L21/60
Filed: 1990-08-16
Abstract: Electrode terminals formed on a pair of a circuit substrate and another circuit substrate or electrical element are mutually connected electrically by the medium of electroconductive particles. Prior to the connection, the electroconductive particles (4) may be charged and dispersed onto a circuit substrate (11) to be selectively attached to the electrode terminals (8) thereon. The selective attachment may be enhanced by masking a part other than the connecting part of the electrode terminals (8) of the circuit substrate with an insulating member or film (10) so as to guide the charged electroconductive particles (7) along electric lines of force directed to the exposed parts of the electrode terminals. The attached electroconductive particles (9) are sandwiched between the pair of circuit substrates, which may be secured to each other by means of an insulating adhesive or an electroconductive resin.
Patent EP-0436111-A2 (EP)
Inventor: PAKULL RALF DR
IPC: C08L101/00
Filed: 1990-11-23
Abstract: The invention relates to mixtures of substituted homo-poly-p-phenylenes and thermoplastic polymers having a melting/softening point of >70 DEG C and having excellent mechanical properties and good processing properties, to a process for their preparation, and to their use for the production of mouldings, filaments, fibres and films.
Patent EP-0432671-A2 (EP)
Inventor: SUZUKI HIDEO
IPC: G10H1/02
Filed: 1990-12-07
Abstract: Data of desired variable data length is stored in a memory. When desired data is to be taken out of the memory, data length of the data to be taken out is designated and necessary data is selectively taken out of the memory in accordance with the designated data length. Single data may be stored over plural addresses. In that case, MSB or LSB of data to be taken out of the data stored over the plural addresses is pointed out and desired data of a desired bit number is taken out in accordane with the pointed out position and the bit number of the data. In the memory, first data and second data may be mixedly stored. The second data consists of plural bits and is divided in plural sections, each section being separately stored in the first data. The first data and the second data are separated from the data which has been read from the memory and the respective sections of the second data are assembled together to reproduce completed second data. This storage and reproduction of data contributes to an efficient utilization of the memory.
Patent EP-0405651-A2 (EP)
Inventor: BAHRANI ABDUL SATTAR
IPC: B02B3/00
Filed: 1990-06-19
Abstract: Processes for dehusking psyllium seeds to obtain high yields of high purity psyllium seed husk. These processes comprise milling intact psyllium seeds in a mill which causes the husk to be fragmented by collision under conditions whereby the husk is fractured and separated from the non-husk portion of the psyllium seed without substantial breakage and size reduction of the non-husk portion. Preferred milling utilizes impact speeds within the range of from about 5m/sec to about 40m/sec.
Patent EP-0390564-A2 (EP)
Inventor: KINOSHITA SHINITSU
IPC: B29D17/00
Filed: 1990-03-29
Abstract: Disclosed are an optical recording medium and a metal mold for a resin substrate for optical recording medium. The optical recording medium comprises a thin film layer including at least a recording layer or a reflecting layer formed on a signal pattern transferred to one surface of a resin substrate, wherein an external dimension of the signal pattern surface of the resin substrate is made smaller than an external dimension of a light incident surface and the extreme end of burrs projecting from the outer circum­ferential edge of the signal pattern surface is disposed in­wardly of the outer circumferential edge of the light inci­dent surface. The metal mold for the resin substrate (10) for op­tical recording medium comprises a stamper (2) on which a reverse pattern of a signal pattern to be transferred onto the resin substrate (10) is formed, a backing plate (1) for reinforcing the stamper, a stamper inner circumference presser (3) for fixing the inner circumference of the stamper (2) to the backing plate (1), a stamper outer circumference presser (4) for loosely pressing the outer circumference of the stamper (2), and a mirror plate (5) to be engaged with the open end of the stamper outer circumference presser (4), where, in a cavity formed of the parts, a dimension of the portion defined by the stamper (2) and the stamper outer circumference presser (4) is made smaller than a dimension of the   portion defined by the mirror plate and the stamper outer circumference presser by at least an amount corresponding to a projecting amount of burrs made between the stamper and the stamper outer circumference presser.
Patent EP-0404499-A2 (EP)
Inventor: FEELY WAYNE EDMUND
IPC: G03F7/38
Filed: 1990-06-19
Abstract: Photosensitive compositions, suitable for use as negative photoresist compositions with exposing systems that operate using near UV radiation, are provided. The photosensitive compositions comprise (i) photoactive material which is (a) photoacid generator and, as sensitizer, phenothiazine, a phenothiazine derivative, phenoxazine or a phenoxazine derivative or (b) 2-chlorophenothiazine, and (ii) acid-hardening resin system. 
     The photosensitive compositions can be used to produce thermally stable, high resolution images with near UV exposing radiation.
Patent EP-0415671-A2 (EP)
Inventor: SONOBE TAKASHI
IPC: A61K9/22
Filed: 1990-08-24
Abstract: A device for extended retention in the stomach, the device comprising a molding which comprises shape memory material (A) joined to or mixed with material erodible  in vivo  (B), said molding being of a size, shape and durability to remain in the stomach for a definite residence time. 
     The device can be of a shape such as not to hinder passage of food in the stomach and is capable of being folded to an orally administrable form. It is used for drug delivery.
Patent EP-0418204-A2 (EP)
Inventor: SFORZA WALTER
IPC: A61H33/00
Filed: 1990-09-12
Abstract: A device for self-cleaning of a hydromassage appliance wherein the centrifugal hydro-massage pump (2) has its suction port connected to the drainage hole (5) of the bath-tub (1) and its delivery port connected to the drainage conduit (6) of the mains by means of a discharge valve (7), comprising a cleaning water supply conduit (20) connected to the mains and including a valve (21), a device (39) for sensing the water level in the bath-tub (1) and for controlling the hydro-massage pump (2), a partial interception device (19) included in the delivery conduit of the pump, a device (28) for operating said cleaning water inlet valve (21) and a device (28) for operating said discharge valve (7).